七年级U1-U3语法知识复习以及语法选择专题训练知识点：不定冠词和定冠词的基本用法规律特殊疑问句复习一般现在时复习There be 句型复习一、不定冠词和定冠词：1、不定冠词：a, an 表示一个，相当于one，a用在以辅音字母开的可数名词单数，an只用在以元音字母开始的可数名词单数。

2、当句子或文章中第一次提到某个事物时，用不定冠词a或者an表示一个：Eg：There is a cat on the tree, the cat is mine.3、定冠词：the当句子或文章中第二次以上提到某个事物时，用the表示同一件事I have a pen, the pen is red.如果事物是大家都知道的，那第一次提到也用theDo you know the boy over there?世界上唯一的天体前用theThe Sun is far away from us.乐器前用the，运动前不用theLinda doesn't like playing football, she likes playing the piano.记住部分固定搭配I will meet you in the afternoon.in the morning, in the evening, in the classroom......序数词前要用thethe first, the second...注意the的读音：在以元音开头的单词读/ði/，在以辅音开头的单词前读/ ðə /二、特殊疑问句复习1、特点：以特殊疑问词开始，并且要用句子回答2、结构：特殊疑问词+一般疑问句Eg:1.--What colour do you like best?--I like blue best.特殊疑问词：what when where which who whose why how how many how much how farhow long意为“多久、多长时间”,主要是对一段时间进行提问,答语通常是（for）three days/weeks/months 等时间段,它可用于各种时态.Eg:How long do you stay in Beijing every year?How long have they lived here?—How long were you not at school last year?—About two weeks.how soon意为“还要多久”,是对从某个基本时间到将来某动作结束或某动作发生这段时间提问,常用在一般将来时态的句子中,其答语通常是“in + 一段时间”.Eg:—How soon can you finish the work?—In half an hour.how often意为“多久……次、是否经常”,用来提问在某一特定的时间进行某个动作的次数,答语通常是always, usually, often, sometimes, once/twice a day/month等.Eg:—How often do you get to school very early?—Usually.3、把陈述句变为特殊疑问句。

一定：根据画线部分确定特殊疑问词，并代替画线部分。

二变：将句子变成一般疑问句。

三提：将特殊疑问词提前。

Eg: She will go to Canada next year.whenWill she go to Canada when ?When will she go to Canada ?注意：①当画线部分是句子的主语，挑选适当特殊疑问词即可，不做其它变化。

Leo has a lovely pet.WhoWho has a lovely pet ?②在用特殊疑问词代替画线部分时，要适当加词使句子通顺。

They are playing football.doing whatWhat are they doing ?三、一般现在时复习表示：目前阶段经常发生的动作或者存在的状态或客观真理标志：频度副词和表示日常的时间词特点：当主语是第三人称单数的时候，动词要加sEg: He goes to school by bus every day.They always go out at weekend.The Earth is round.LiMing lives in Beijing.常用频度副词：常常放在句子的动词前面。

always(总是)≻usually(通常)≻often(经常)≻sometimes(有时候)≻seldom(很少)≻never(从不)常用频度副词短语：常常放在句子的最后。

once a week, twice a week, three times a week, four times a week……5.动词加S的规律①一般情况下动词原形后直接+seg:books resds loves forgets②以辅音字母+y结尾的动词，把y改成i，再+es；try--tries, fly--flies, study--studies③以元音字母+y结尾的动词，直接+ssays plays buys④以“ch/sh/o”结尾的动词后+esdoes goes watches washes brushes⑤“有”动词：have 的第三人称单数形式为has四、There be 句型复习①定义：表示某处存在某物或某人②句式：There is +可数名词单数/不可数名词+地点There are +可数名词复数+地点注意：be 动词要与句子的主语保持一致，is+三单、are+一单、二单复、三复。

③当主语是2个以上的名词组成时候，be 动词与它最近的一个保持一致，如例eg：There is a girl under the tree.There is a teacher and some students in the calssroom.There are three books on the desk.There are two bottles of milk in the box.④There be 句型的否定式：There is=There is not =There isn'tThere are =There are not =There aren't⑤There be 句型的一般疑问句式Is there………----Yes,there is./No,there isn't.Are there …………----Yes, there are./No,there aren't.⑥There be 句型的特殊疑问句式：当主语是人的时候。

Eg: There is a little girl in the room.①②①Who is in the room?②Where is the little girl?⑦当划线部分是数词时候There are five birds on the playground.How many birds are there on the playground?五、语法选择训练语法选择是考核语法在语篇中的应用，在考试中主要遵循以下原则1、搭配优先2、语境优先3、句型句式优先4、前后时态一致Hello! I'm Cindy in Class 4 Grade 7. Welcome to 1 classroom. It is big 2 tidy. There are 48 3 in my class, 4 you can see 48 yellow 5 and 48 white chairs. Our books are 6 the desks. Our schoolbags 7 in the desks. 8 the front of the classroom is the teacher's desk. 9 is blue. A tape player is on the teacher's desk. 10 radio is on the teacher's desk 11 . There is a white computer in 12 classroom. The computer is next 13 the teacher's desk. We can send email to 14 friends on it. Oh, it is time 15 class. Bye!( )1. A. my B. I C. me D. mine( )2. A. so B. but C. or D. and( )3. A. student's B. students' C. student D. students ( )4.A. and B. but C. so D. or ( )5.A. desk's B. desks' C. desk D. desks ( )6.A. in B. at C. of D. on ( )7. A. is B. are C. was D. were ( )8. A. At B. On C. In D. By ( )9. A. It's B. It C. Its' D. Its ( )10. A. A B. An C. The D. / ( )11. A. also B. too C. as D. either ( )12. A. a B. an C. the D. / ( )13. A. of B. to C. for D. from ( )14. A. we B. us C. our D. ours ( )15. A. for B. from C. over D. about练习题：二、完成下列习题：1. ________________ is that pretty girl? She is my sister.2. ________________ are Jack and Tom? They are behind you.3. ________________ do you go to school? I go to school from Monday to Friday.4. ________________has a beautiful flower? John has a beautiful flower.5. ________________are they? They are beautiful flowers.6. ________________is your mother? She is 38.7. ________________ is your book? This one.8. ________________ ball is this? It’s Jim’s.9. ________________ does he like? He likes blue.10. ________________ are you late? Because I didn’t catch the bus.三、完成下列练习1.He is my father.2.They are under the tree.3.I often watch TV after dinner.4.Lily swims in the swimming pool.5.Birds can fly in the sky.6.I brush my teeth in the evening.7.Alan likes to play with Bill.四、翻译下列句子。